Photo: Gabriel Picard · CC BY-SA 4.0Hazard risk in Saint-Agapit is higher than in 91% of Canadian towns
Around Saint-Agapit, wildfire is practically absent from the record: 0% within 25 km since 1986, 0.000% a year. Earthquakes add more: NRCan’s model puts building losses at $0.13 a year per $1,000 of value, against $0.030 for the typical town. Radon is higher than usual: 13% of tested homes in the survey area topped the guideline, against 6.6% for the typical town. Hazard risk gives Saint-Agapit a grade of D, from earthquakes and radon alone.
What stands out about Saint-Agapit’s hazards
For Saint-Agapit, from NRCan’s seismic model, Health Canada’s radon survey, the national burned-area record and the flood map inventory.
What Saint-Agapit faces
Each hazard against its own yardstick; meters run from low to high on that yardstick.
Wildfire
Earthquakes
Radon
Flood study
Hazard risk in Saint-Agapit: D
Risk averages earthquakes and radon; wildfire joins only where it pulls the average down, so a town like Saint-Agapit with little fire nearby would get no credit for it.
Its place: #475 of 507 in Quebec and #2,483 of 2,589 Canadian towns.
How sure: Earthquake losses are a model’s expectation over many years, not a forecast for any one. The burned-area record misses fires under about 10 ha and most grass and farm fires.
Little of the land around Saint-Agapit has burned: 0% within 5 km, 0% within 25 km since 1986
Fires mapped since 1986 around where Saint-Agapit’s residents live, and the fuel next to their homes.
Next to the typical Canadian town (0.000% a year), Saint-Agapit’s 0.000% is in the low band.
Nothing inside 5 km of Saint-Agapit’s homes has burned since 1986, and the nearest scar is 12 km off.
More forest grows near Saint-Agapit’s homes (48% within 5 km) than across 25 km (31%).
Shares of land within 5 and 25 km of populated blocks: burned at least once in 1986–2025 (CWFIS burned-area composite), forest fuel and grass (fire behaviour fuel types, 2026, 250 m grid).
Burn rate a year, towns in Quebec · highest of 513
To three decimals the burn rate around Saint-Agapit is zero, as for 144 of the 513 towns in Quebec, while Mistissini reaches 0.31%.
Each bar: the yearly average share of land within 25 km of a town’s homes that burned, 1986–2025 (CWFIS); the seven highest towns of 2,500 people or more.
The low band holds 92% of Canada’s 2,610 towns, and Saint-Agapit sits at its very bottom; only 7.5% are above it.
Bands of the yearly burn rate: low under 0.05%, moderate under 0.25%, high under 1%, very high 1% or more; towns of 2,500 people or more.
Fire danger and active fires (CWFIS)
Canadian Wildland Fire Information System: National Burned Area Composite 1986–2025 and fire behaviour fuel types (2026), Natural Resources Canada. Measured within 25 km and 5 km of each populated dissemination area; past fire, not a forecast.
Gouvernement du Québec has mapped flooding for Saint-Agapit (1 study)
Flood studies whose area touches Saint-Agapit, from NRCan’s inventory, each linked to its owner.
The flood study touching Saint-Agapit is Gouvernement du Québec’s, dated 2005; its own map shows the zones street by street.
| Study | By | Year | Status |
|---|---|---|---|
| St-Gilles | Gouvernement du Québec | 2005 | final |
Towns with a flood study on file
Flood maps are thinner in Quebec, 45% of towns against 58% nationally, but Saint-Agapit has one.
NRCan Canada Flood Map Inventory: a study footprint touching the town’s boundary; towns of 2,500 people or more.
Nothing here counts toward Risk; the studies are pointers to the maps their owners keep for Saint-Agapit.
The inventory’s own caution (NRCan): “The Canada Flood Map (CFM) does not include every flood hazard map in Canada and may be incomplete or contain inaccuracies. It should not be relied upon as the official source of flood mapping information. Furthermore, if a map appears to be missing, this does not necessarily mean that the area has never been mapped. For the official version of a map, updated information, or confirmation of applicable regulations, please contact the local authority responsible for flood mapping.”
Natural Resources Canada, Canada Flood Map Inventory; links go to each study’s owner.
High seismic risk in Saint-Agapit: $0.13 per $1,000 of buildings a year
NRCan’s seismic risk model: the damage shaking is expected to do to buildings each year, on average over many years.
At $0.13 per $1,000, Saint-Agapit carries roughly 4.4 times the typical Canadian town’s earthquake risk ($0.030).
Shaking damage a year per $1,000 of building value
Saint-Agapit’s $0.13 is close to the median in Quebec, $0.14; La Pocatière is highest at $0.48.
NRCan seismic risk model (2022): mean yearly building loss per $1,000 of value; medians of towns of 2,500 people or more.
22% of Canada’s 2,611 towns expect more shaking damage than Saint-Agapit, which places it in the upper third.
Each column: the share of Canada’s towns of 2,500 people or more in that range of yearly loss per $1,000 (NRCan, 2022).
Only shaking damage to buildings in Saint-Agapit is counted; landslides, liquefaction, tsunami and fire after a quake aren’t.
Natural Resources Canada, Canada’s Seismic Risk Model (2022), by census subdivision (2016 boundaries; a few 2021 subdivisions take their residents’ mean).
Test for radon in Saint-Agapit: 13% of area homes were over the guideline
Health Canada’s survey of long-term home tests: the share above the 200 Bq/m³ guideline.
Saint-Agapit’s survey area reads 13% over the guideline, well past the typical Canadian town’s 6.6%.
Tested homes over 200 Bq/m³
Over 600 Bq/m³
Saint-Agapit’s area, at 13%, is above the median in Quebec (8.2%), and 0.6% of its tests passed 600 Bq/m³.
Health Canada radon survey (2009–2011), by 2007 health region; medians of towns of 2,500 people or more.
One test in ten or more tops the guideline around Saint-Agapit, as in 22% of Canada’s 2,611 towns; 4.6% go higher.
Each bar: the share of Canada’s towns of 2,500 people or more whose survey area had that share of tests over 200 Bq/m³.
A low area share in Saint-Agapit doesn’t clear a house, nor does a high one condemn it: test.
Health Canada, Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). · Data for radon tests covers the Chaudiere-Appalaches health region
Where to get warnings in Saint-Agapit
Environment and Climate Change Canada issues the weather alerts for Saint-Agapit; Alert Ready carries the urgent ones to phones, radio and TV.
| Alert | What it means |
|---|---|
| Warning | Severe weather is happening or about to: act now. |
| Watch | Conditions favour severe weather: be ready. |
| Advisory | Weather that is less severe but could disrupt the day. |
| Special weather statement | Unusual weather worth knowing about. |
| Special air quality statement | Poor air, often wildfire smoke. |
Smoke and fire warnings for Saint-Agapit come through Environment Canada and Alert Ready; the fire map is CWFIS’s.
Weather alerts (ECCC) · Alert Ready · Fire danger and active fires (CWFIS)
Hazards in the places around Saint-Agapit
The same four hazards for the places next door.
| Town | Wildfire | Quake $/1,000 | Radon | Flood study |
|---|---|---|---|---|
| Saint-Agapit | Low | $0.13 | 13% | Yes |
| Saint-Apollinaire 9,218 · 7.1 km | Low | $0.14 | 13% | None listed |
| Saint-Gilles 3,521 · 9.2 km | Low | $0.13 | 13% | Yes |
| Saint-Flavien 1,682 · 12 km | Low | $0.12 | 13% | None listed |
| Laurier-Station 2,838 · 15 km | Low | $0.14 | 13% | None listed |
| Saint-Antoine-de-Tilly 1,747 · 15 km | Low | $0.14 | 13% | None listed |
| Saint-Lambert-de-Lauzon 7,551 · 17 km | Low | $0.14 | 13% | None listed |
Among its neighbours Saint-Agapit has the most fire on record (low); Saint-Apollinaire follows (low).
Radon is the survey area’s figure, so neighbours in one area share it.
Get ready for what Saint-Agapit faces
What to do about the hazards Saint-Agapit faces, and what to ask before you buy.
- Test for three months in winter.
- Over 200 Bq/m³: fix it.
- Kits are cheap; pros test too.
- Never drive through floodwater.
- Move papers and medicines upstairs.
- Ask whether your street is mapped.
- Drop, cover and hold on.
- Strap the water heater down.
- Keep 72 hours of supplies.
- Has it had a radon test?
- Check the address on the flood map.
- Are flood and wildfire insured?
- Is earthquake cover included?
What this data can and can’t tell you
- Flood studies aren’t flood zones. NRCan’s inventory says where flood mapping exists, not where water goes; the map’s owner is the authority for Saint-Agapit.
- Earthquakes are modelled. Seismic risk is NRCan’s model of yearly building losses from shaking, averaged over many years and given for Saint-Agapit’s census subdivision (a neighbourhood shows its city’s).
- Wildfire counts one way. For Saint-Agapit, wildfire means how much nearby land burned in the past forty years, a one-way input that can pull Risk down and nothing more.
- Radon is a survey. About 14,000 homes were tested across Canada in 2009–2011, and the share over the guideline for Saint-Agapit is its health region’s, the survey’s design unit.
Questions about flooding and hazards in Saint-Agapit
Does Saint-Agapit flood?
There is flood mapping for Saint-Agapit on the national inventory, each study linked to its owner’s map, none of them graded.
Is radon a problem in Saint-Agapit?
In Health Canada’s survey, 13% of 175 homes tested in Saint-Agapit’s area were above 200 Bq/m³, though only a test tells you about one house.
Is Saint-Agapit at risk of wildfire?
Less than most of Canada: 0% of the land within 25 km of Saint-Agapit has burned since 1986, the last in 2018, a low band that leaves Risk alone.
How big is the earthquake risk in Saint-Agapit?
About $0.13 a year per $1,000 of building value, NRCan’s long-run expectation for Saint-Agapit.
How is Saint-Agapit’s Hazard risk Grade worked out?
Saint-Agapit grades D for hazard risk, from earthquakes and radon, with wildfire counted only where it lowers the grade.
Seismic risk: Natural Resources Canada. Radon: Health Canada. Wildfire: Canadian Wildland Fire Information System. Flood studies: Natural Resources Canada, Canada Flood Map Inventory. Contains information licensed under the Open Government Licence – Canada.
Sources: NRCan, Canada’s Seismic Risk Model 2022 · Health Canada, Cross-Canada Survey of Radon Concentrations in Homes · CWFIS, National Burned Area Composite and FBP fuel types · NRCan, Canada Flood Map Inventory. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).